Question

Complete the process of solving the equation.
Fill in the missing term and select the missing description. Simplify any fractions.
10(r+1)=20
r+1=2
Add 10 to both sides
Subtract 10 from both sides
Multiply both sides by 10
Divide both sides by 10
Combine like terms
r=
Subtract 1 from both sides

Answer 1

Let's solve the equation step by step and fill in the missing terms and descriptions.

Starting with the original equation:

\[ 10(r + 1) = 20 \]

1. **Divide both sides by 10** to isolate the expression in parentheses:

\[
r + 1 = \frac{20}{10}
\]

This simplifies to:

\[
r + 1 = 2
\]

2. Now, we need to solve for \( r \). **Subtract 1 from both sides**:

\[
r = 2 - 1
\]

Which simplifies to:

\[
r = 1
\]

So, the completed steps are:

- 10(r+1) = 20
- **Divide both sides by 10**
- r + 1 = 2
- **Subtract 1 from both sides**
- r = 1

The missing term is \( r = 1 \) and the missing description for that step is "Subtract 1 from both sides."